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author | bunnei <bunneidev@gmail.com> | 2017-03-17 19:59:39 +0100 |
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committer | GitHub <noreply@github.com> | 2017-03-17 19:59:39 +0100 |
commit | 423ab5e2bcf5a522e5f412447c05f648df57a14c (patch) | |
tree | 1e60eaeffa59229254a47f885d2fe2cbbdc1a5c0 /src/input_common/analog_from_button.cpp | |
parent | Merge pull request #2618 from wwylele/log-less-filename (diff) | |
parent | qt/config_input: don't connect for null button (diff) | |
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Diffstat (limited to 'src/input_common/analog_from_button.cpp')
-rwxr-xr-x | src/input_common/analog_from_button.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/input_common/analog_from_button.cpp b/src/input_common/analog_from_button.cpp new file mode 100755 index 000000000..e1a260762 --- /dev/null +++ b/src/input_common/analog_from_button.cpp @@ -0,0 +1,58 @@ +// Copyright 2017 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "input_common/analog_from_button.h" + +namespace InputCommon { + +class Analog final : public Input::AnalogDevice { +public: + using Button = std::unique_ptr<Input::ButtonDevice>; + + Analog(Button up_, Button down_, Button left_, Button right_, Button modifier_, + float modifier_scale_) + : up(std::move(up_)), down(std::move(down_)), left(std::move(left_)), + right(std::move(right_)), modifier(std::move(modifier_)), + modifier_scale(modifier_scale_) {} + + std::tuple<float, float> GetStatus() const override { + constexpr float SQRT_HALF = 0.707106781f; + int x = 0, y = 0; + + if (right->GetStatus()) + ++x; + if (left->GetStatus()) + --x; + if (up->GetStatus()) + ++y; + if (down->GetStatus()) + --y; + + float coef = modifier->GetStatus() ? modifier_scale : 1.0f; + return std::make_tuple(x * coef * (y == 0 ? 1.0f : SQRT_HALF), + y * coef * (x == 0 ? 1.0f : SQRT_HALF)); + } + +private: + Button up; + Button down; + Button left; + Button right; + Button modifier; + float modifier_scale; +}; + +std::unique_ptr<Input::AnalogDevice> AnalogFromButton::Create(const Common::ParamPackage& params) { + const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize(); + auto up = Input::CreateDevice<Input::ButtonDevice>(params.Get("up", null_engine)); + auto down = Input::CreateDevice<Input::ButtonDevice>(params.Get("down", null_engine)); + auto left = Input::CreateDevice<Input::ButtonDevice>(params.Get("left", null_engine)); + auto right = Input::CreateDevice<Input::ButtonDevice>(params.Get("right", null_engine)); + auto modifier = Input::CreateDevice<Input::ButtonDevice>(params.Get("modifier", null_engine)); + auto modifier_scale = params.Get("modifier_scale", 0.5f); + return std::make_unique<Analog>(std::move(up), std::move(down), std::move(left), + std::move(right), std::move(modifier), modifier_scale); +} + +} // namespace InputCommon |